The NIBCO® cast iron check valve features threaded end connections for easy installation. It is equipped with a bolted bonnet for maintenance accessibility. The swing check valve includes a renewable cast bronze seat and disc. Swing checks may be installed in horizontal positions (or vertical with flow moving up). Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO® check valves for the most specified,more versatile and economical valve option in commercial, mechanical and industrial applications. NIBCO® check valves are backed by the NIBCO 5-year 125% limited warranty. less